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Geometry-Dependent Lighting
March/April 2006 (vol. 12 no. 2)
pp. 197-207
ASCII Text
x 
 
Chang Ha Lee, Xuejun Hao, Amitabh Varshney, "Geometry-Dependent Lighting," IEEE Transactions on Visualization and Computer Graphics, vol. 12, no. 2, pp. 197-207, March/April, 2006.
 
 
BibTex
x
 
@article{ 10.1109/TVCG.2006.30,
author = {Chang Ha Lee and Xuejun Hao and Amitabh Varshney},
title = {Geometry-Dependent Lighting},
journal ={IEEE Transactions on Visualization and Computer Graphics},
volume = {12},
number = {2},
issn = {1077-2626},
year = {2006},
pages = {197-207},
doi = {http://doi.ieeecomputersociety.org/10.1109/TVCG.2006.30},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA},
}
 
 
RefWorks Procite/RefMan/Endnote
x 
 
TY - JOUR
JO - IEEE Transactions on Visualization and Computer Graphics
TI - Geometry-Dependent Lighting
IS - 2
SN - 1077-2626
SP197
EP207
EPD - 197-207
A1 - Chang Ha Lee,
A1 - Xuejun Hao,
A1 - Amitabh Varshney,
PY - 2006
KW - Lighting design
KW - scientific illustration
KW - discrepant lighting
KW - light placement
KW - silhouette enhancement
KW - proximity shadows
KW - spherical harmonics.
VL - 12
JA - IEEE Transactions on Visualization and Computer Graphics
ER -
 

Abstract—In this paper, we introduce geometry-dependent lighting that allows lighting parameters to be defined independently and possibly discrepantly over an object or scene based on the local geometry. We present and discuss Light Collages, a lighting design system with geometry-dependent lights for effective feature-enhanced visualization. Our algorithm segments the objects into local surface patches and places lights that are locally consistent but globally discrepant to enhance the perception of shape. We use spherical harmonics for efficiently storing and computing light placement and assignment. We also outline a method to find the minimal number of light sources sufficient to illuminate an object well with our globally discrepant lighting approach.

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Index Terms:
Lighting design, scientific illustration, discrepant lighting, light placement, silhouette enhancement, proximity shadows, spherical harmonics.
Citation:
Chang Ha Lee, Xuejun Hao, Amitabh Varshney, "Geometry-Dependent Lighting," IEEE Transactions on Visualization and Computer Graphics, vol. 12, no. 2, pp. 197-207, March-April 2006, doi:10.1109/TVCG.2006.30
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